Lubricating-cup for wagons.



G. E. MARBEL.

LUBRIGATING 0UP FOR WAGONS.

APPLICATION FILED FEB.25, 1913. V

Patented Dec. 16, 1913.

HI Ill GEORGE E. MARBEL, 0F DUBUQUE, IOWA.

LUBRIGATING-CUP FoR'w eoNs.

Specification of Letters Patent.

Patented Dec. 16, 1913.

Application filed February 25, 1913. Serial No. 750,617.

To all whom it may concern Be it known that I, GEORGE E. MARBEL, a citizen of the United States, residing at Dubuque, in the county of Dubuque and State of Iowa, have invented certain new and useful Improvements in Lubricating-Cups for WVagons, of which the following is a specification.

My invention relates to lubricating cups for wagon axles and is intended as an improvement on the device set out in my application, filed the 3rd day of January, 1913, Serial No. 739,938, and one of the objects is to prevent any dust from getting into the grease cup and interfering with the operation of the plunger or injuring the threads on the plunger and the inside of the cup.

Another object is to keep a continuous and equal tension on the spring that holds the protecting cap over the grease cup and holds a plate over the grease cup.

How to accomplish these objects will be fully described and illustrated in the following specification and drawings accompanying the same and forming a part hereof.

Figure l is a perspective view ofthe cup ready to attach to a wagon. Fig. 2 is a vertical section with the plunger screwed down and nearly all of the grease out of the cup. Fig. 3 is a vertical section when the plunger is nearly at the top of the grease cup. Fig. 4 is a plan View of the plate.

In the drawings 2 designates the grease cup, which is provided with screw threads 4 on the inside and on opposite sides with lugs 5. The cup is formed into funnel shape 6 and terminates in a tube 8 adapted to be inserted in an opening in the hub of the wheel. Within the cup is a plunger 10 provided with screw threads 12 on the outside adapted to engage the threads 4 on the inside of the cup. Integral with the plunger is a stem 14 provided with an operating handle 15. Around the upper end of the cup is a cap 16 which is provided with a hook 17 on opposite sides adapted to engage the lugs 5 on the sides of the cup. There is also an opening 18 in the top through which the stem 14 projects. This cap is intended to keep out some of the dust from the cup, but in order to more fully protectthe threads 4 on the inside of the cup and threads 12, on the outside of the plunger there is provided a plate 20 of the same diameter as the outside diameter of the cup 2. This plate surrounds the stem 14 and rests upon the top of the cup 2 over the plunger. Around the stem 14 and engaging the upper inner end of the cap 16 and the top of the plate 20 is a spring 22. This spring is adapted to exert a continued and unvarying pressure upon the plate to keep it firmly on the top of the cup and also the same pressure against the inner upper end of the cap to hold it in rigid engagement with the lugs 5 011 the cup.

By the mode of construction set out in my former application, the spring around the stem and in engagement with the cap and top of the plunger, exerted a pressure that varied with the position of the plunger in the cup. By the present construction the pressure of the spring is always the same to hold the cap in engagement with the cup and the plate over the cup. This feature is important not only in protecting the cup against all dust but to prevent all rattling of the cap when the grease is nearly out of the cup.

It will be seen by providing the plate 20 and placing it upon the cup inside of the cap around the stem, and holding it in that position by the spring, that the threads in the cup and on the plunger will be securely protected from all dust, and further, that there will be a continuous and unvarying pressure to hold the cap always in engagement with the lugs on the cup and to hold the plate firmly upon the top of the cup.

Having now described my invention what I claim is 1. In a device of the character described, a cup, a plunger in the cup, a plate over the top of the cup, a cap over the'plate and in engagement with the cup, and means for exerting a continuous and unvarying pressure on the plate and cap to hold the plate on the cup and the cap in engagement with the cup.

2. In a device of the character described, a cup, a plunger in the cup, a cap over the cup and in engagement with the cup, a plate within the cap over the cup and plunger, and a spring engaging the cap and plate to hold the plate on the cup and the cap in engagement with the cup.

In a device of the character described, a cup provided with screw threads on its inner side, lugs on the outer side of the cup, a plunger provided with threads on its outer side adapted to engage the threads in the cup, a stem secured to the plunger, a cap provided With hooks on its outer side adapt- In testimony whereof I affix my signaed to be engaged by the lugs on the cap and ture in presence of two Witnesses. Set Over the Cup and aI'OIIIId the stem, at E plate over the plunger and cup and Within the cup, and a spring around the stem and WVitnesses:

engaging the inside upper end of the cap and M. M. CADY,

top of the plate. B. M. HENSCHEL.

Copies of this patent may be-obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

